Robert brown



3 Sheets-Sheet yl.

(No Model.)

R. BROWN.

HARVESTER FRAME.

No. 401,127. Patented Apr. 9, 1889.

GDI DD N. Penna mmmmgnpner. wzsmnm n, c.

(No Model.) 3 Sheets- Sheet 2.

R. BROWN. HARVESTER FRAME.

No. 401,127. Patented Apr. 9, 1889.

N PETERS. Phclo'Llhngnpher. Washngun. D. C.

ROBERT lil'tOlVN, Oli MIAMISBURG, OIIIO, ASSIGNOR 'lO `HOOVER t GAivilSLE, OF SAME PLACE.

HARVESTER-FRAM E.

SPECIFICATION forming part of Letters Patent No. 401,127', dated April 9, 1889.

Application led April 4:, 1887. Serial No. 233,633. (No model.)

To all whom zt may concern:

Be it known that I, ROBERT BROWN, a resident of Miamisburg, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Ilarvester-Frames, of wl'iich the following is a specification.

My invention relates to a harvester-frame.

The object of my invention is, first, to strengthen the construction of the frame and obtain one which will be more durable. It is desirable to have a durable and very rigid frame upon which is mounted the binding mechanism, in order to carry the weight and resist the strain imparted toit by the harvester mechanism.

Another object of my invention is to combine with the harvester-frame raising and lowering devices, which will be cheap, strong, and durable, and also allow agreater range of vertical adjustment of the harVester-frame, so that the grain may be cut higher than has been accomplished by the construction hitherto employed.

The various features of my invention will be fully explained in the description of the accompanying drawings, making a part' of this specification, in which- Figure l is a top pla-n view of my improvement. Fig. 2 is a broken sectional elevation showing the elevating devices. Fig. is a detail view of the crank and con nectin g-liook. Fig. 4 is a perspective skeleton view of the frame. Figs. 5 and (i are detail views of parts of the frame. Fig. 7 represents a bottom plan view of one of the .frame-rails. Fig. 8 is a central vertical section through the main shaft with some of the driving-pinions in elevation.

A represents the master-wheel of an ordinary single-wheeled harvester; B, the tongue; C, brace-rods; D, the pitman; E, the crankwheel driving the cutter-bar. In dotted lines, Fig. l, F represents a spur-wheel meshing with the driving-gear. G represents the driving-shaft `iournaled on the frame; H I, bevelwheels for transmitting motion to the crankshaft J, to which attached crank E. K represents a drivin g-shaft taking its motion from I spur-gear L on shaft J by gear M on said shaft K. N represents a sprocket-wheel adapted to drive the hnotting and binding mechanisms. 'lhese parts are of the usual construction, and need not be more fully described.

The main frame is made of iron, and is constructed as follows:

l represents an angle iron forming the front rail of the frame. Itispreferably made of malleable iron,.with ears, 2 for securing the tongue, and with ears 3, for securing the tongue-braces, east integral therewith. Upon the underside of said rail are suitable flanges, 13, which serve as abutments against which the longitudinal side rails rest and to which they are bolted.

` 5 represents the rear rail, which is of similar construction to the front rail, provided with suitable flanges and lugs rigidly secured to or cast with it to receive and hold the driving mechanism and furnish flanges against which the longitudinal rails abut and to which they are bolted.

6 represents the finger-bar beam secured to rail l by means of sleeves 7 and bolts S, passing through said sleeves.

9 and l() represent the platform-bars. To rail 5 is bolted the platform-bar i). Rail 10, which is the middle sill of the platform, is rigidly bolted te the longitinlinal rails of the frame.

ll. 'l2 represent longitudinal rails, the ends of which abut against the vertical lian ges of the front and rear rails and against the side iianges, i3, to which they are securely bellied. These bars are made of rhin iron placed edgewise, and they are secured together and prevented from spreading by means of sleeves 11i and bolts l5, passing through said sleeves and through said rails ll 12 to tie them together. Thus I make the side rails of two pieces and secure them by bolts, which serve as braces to increase the rigidity of the frame.

IG represents arched brace-bars, the endsof which are bolted to the front and rear rails,

l and 5.

17 represents laterally-bracing bars, which extend from the inner rail, 12, at the center to the outer rail, l1, at the ends, and are curely bolted to the side rails. Thus the fra-me is laterally and vertically braced, making at once a cheap, strong, and very durable frame.

O represents a sleeve attached to the hub of the master-wheel. Through this sleeve passes the axle journaling therein, which is provided at either end with pinions 18, each of which engages with segment-teeth 19, formed in the slots of brackets 20. The brackets 2O are rigidly attached to the inner rails, 12, on each side of the frame, preferably by the bolts 15. The brackets 2O and pinions 18 are the counterparts of each other, and the segmentalbracket is provided with gains 21, which t the rails 12.

The numeral 21 `represents bolt holes through which the bolts 15 pass.

The axle is supported by the main wheel A, and the frame is sustained on the axle by means of the segmental brackets 20, to which the side pieces, 12, of the frame are bolted, the segments of gear-teeth 19 on said brackets meshing with the pinions 18, mounted on the axle.

The numeral 22 represents a depending arm, preferably cast in one piece with the arms 23 and 32, and pivotally connected at one end to the arm 23, by means of an opening, 25, is a rod, 24, having its other end connected with a post, R, on the frame. The arm 22 is provided with a hook, 41, which engages with the sleeve P, surrounding` the axle, the hook being supported by the gear 36, riding upon the gear 37.

The numeral 33 denotes a beveled pinion keyed on the inner end of the crank-rod 28, which is journaled in the arm 32, and 35 denotes a center bolt, on which is journaled the miter-gear 34, rigid with spur-gear 3G, journaled on the same bolt, 35. The spur-gear 3G meshes with the spur-gear 37, rigid on the axle. A crank, 29, is attached to the crankrod 28, and the latter is supported by a slotted bracket or plate, 30, mounted on a post, 31, of the frame. The raising and lowering of the frame are effected in the manner following: Upon revolving the crank 2S) rotation is imparted through rod 28 and bevel-gear 33 to the miter-gear 34, and thence through spurgear 3G to the gear 37 on the axle, thereby rotating the gears 18, which mesh with segmental gears 10. This causes the frame to rise or fall according to the direction of rotation. As the bracket on arm 22 is pivotally connected to rod 24, and as spur-gear 36 rests on the gear 37 and is held in mesh therewith by the hook 41, said arm turns upon the sleeve P as the frame rises and falls, the sleeve P being the point on which said arm oscillates.

It will be seen that asthe frame rises and falls it is necessary to retain the gear 36 in proper relation to the gear 37, with which it meshes. This is accomplished by means of thehook 41, which is supported by the gear 3G, resting on gear 37, and by the rod 24. As the frame sinks, the rod draws upon the arm 23, causing the gear 3G to move in the arc of a circle of which the axle is the center, and the arm 32 is raised, the crank-shaft 28 moving in the slot of the plate 30. The oscillation of arm 22 is caused by the rise and fall of the part to which the rod 24 is connected, the hook 41 on said arm having no vertical movement. It will be seen that the wheel 36 remains at all times upon the crest or highest point of the gear 37 as the frame is adjusted up and down. As the frame rises and falls, it must move in the arc of a circle correspon din g with the curvature of the segment of rack-teeth 19. For example, as the frame is lowered, the arm 22 is turned in the arc of a circle upon the sleeve P, this movement being permitted by the longitudinal and vertical adjustment of the crank-rod 28 in the bracket 30, as already set forth. The arm 22 being pivotally connected to rod 24, and the pinion 34 being journaled on the arm, and the rod 24 being secured against longitudinal movement at the point 26, it will be seen that as the frame is raised and lowered the arm 22 will oscillate in t-he arc of a circle, the hook 41 turning on the sleeve P, while the spurgear 3G rides through the arc of oscillation upon the periphery of gear 37, being held concentric with said gear by the arm 22. By this construction the gears are always held in mesh, the frame is retained in horizontal position, and may be raised and lowered to any extent within the limits prescribed by the segmental gears 19.

In order to lock and hold the frame in any desired adjustment, I have provided the following instrumentalities:

43 represents a bayonet-sleeve lock sliding on the crank-rod 28. It is mortised to tit the lugs 44,which are projected from the journal arm 45 represents a coiled spring seating against the lock-sleeve 43. These parts are shown in Fig. 2 with the crank-shaft locked in position so that it cannot revolve.

46 represents a bayonet-slot, and 47 a stoppin projecting from rod 28. Vhen it is desired to change the adjustment, lock-sleeve 43 is forcibly retracted by hand, compressing the coiled spring, and is held back by turning it on the shaft 28 until the forward projection engages the pin 47, by which it is hooked or held back, thereby releasing the lock-sleeve from engagement with the lugs 44 on the arm 3.2, Fig. 2, when the crank-rod may be turned to adjust the frame. Then the sleeve-lock is released to engage with the lug of the arm 32. The lugs 44 on journalarm 32 appear in Fig. 2, and the stoppin 47 and bayonet-slot 46 in Fig. 3, these iigures IOO IIO

showing opposite sides of the same mechanand the `laerel braces 17, substantially as described.

2. The combination, with e harvester-frame having gear-seg1nenis 19 centrally mounted thereon, of pinions on the axle meshing' with seid segments, .im arm., 22, having a hook einbraoing the lower side of a sleeve surrounding the axle, said arm 11m/inge projection, 23, connected by a rod, 24, to che frame, a crank-shaft having bearing in the arm 32, :md a. spring-actuated sleeve, 43, on the end of the erin 32 extending from said arm 22, a miteigea-r, 33, carried by said crank-shaft, a ruiter-gear, 3, rigid with a pinion, 3G, both journaled ou the erin 22 with Jche gear 3G meshing with the crest of e gear, 37, on the axle, :uid the gear 34,1neshing with miter- ROBERT BROXVN.

Witnesses:

A. J. EMINGER, FRANK SMITH. 

